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  <a name="EN-US_TOPIC_0000001792388956"></a><a name="EN-US_TOPIC_0000001792388956"></a>
  <h1 class="topictitle1">Manually Performing Backup</h1>
  <div>
   <p>If you want to perform a backup immediately, you can manually perform the backup.</p>
   <div class="section">
    <h4 class="sectiontitle">Prerequisites</h4>
    <p id="EN-US_TOPIC_0000001792388956__en-us_topic_0000001839268029_p169831037318">The prerequisites for the GaussDB T database backup in a single-node system are as follows:</p>
    <ul id="EN-US_TOPIC_0000001792388956__en-us_topic_0000001839268029_ul1683211311223">
     <li id="EN-US_TOPIC_0000001792388956__en-us_topic_0000001839268029_li1832131323">You need to ensure that the GaussDB T database is running properly.</li>
     <li id="EN-US_TOPIC_0000001792388956__en-us_topic_0000001839268029_li35049413312">If full backup or log backup is required, you need to ensure that log archiving has been enabled before backup.</li>
    </ul>
    <p id="EN-US_TOPIC_0000001792388956__en-us_topic_0000001839268029_p15408848124412">The prerequisites for backing up the GaussDB T cluster database are as follows:</p>
    <p id="EN-US_TOPIC_0000001792388956__en-us_topic_0000001839268029_p636716152451">The database needs to run in <strong id="EN-US_TOPIC_0000001792388956__en-us_topic_0000001839268029_b1019122315614">ARCHIVELOG</strong> mode and archive redo logs to multiple locations. For details about how to query and change the log archive mode, see <a href="en-us_topic_0000001839268009.html">Step 2: Setting the Redo Log Mode</a>.</p>
   </div>
   <div class="section">
    <h4 class="sectiontitle">Precaution</h4>
    <p id="EN-US_TOPIC_0000001792388956__en-us_topic_0000001839268029_p5298101017162">After a full backup job fails, if the next backup is a log backup, the log backup job will fail because log backup depends on the copy generated in the last successful full backup. In this case, manually perform a full backup once.</p>
   </div>
   <div class="section">
    <h4 class="sectiontitle">Context</h4>
    <ul>
     <li>During the execution of a manual backup job, the parameters (except <span class="uicontrol"><b><span><strong>Automatic Retry</strong></span></b></span>) defined in the SLA, such as <span class="uicontrol"><b><span><strong>Rate Limiting Policies</strong></span></b></span>, will take effect.</li>
     <li>Copies generated by manual backup are retained for the duration defined in the SLA.</li>
    </ul>
   </div>
   <div class="section">
    <h4 class="sectiontitle">Procedure</h4>
    <ol>
     <li><span>Choose <span class="uicontrol" id="EN-US_TOPIC_0000001792388956__en-us_topic_0000001839268029_en-us_topic_0000001792388936_en-us_topic_0000001839142377_uicontrol174093353365"><b><span id="EN-US_TOPIC_0000001792388956__en-us_topic_0000001839268029_en-us_topic_0000001792388936_en-us_topic_0000001839142377_text164093351368"><strong>Protection</strong></span> &gt; Databases &gt; GaussDB T</b></span>.</span></li>
     <li><span>Click <span class="uicontrol"><b><span><strong>More</strong></span> &gt; <span><strong>Manual Backup</strong></span></b></span> in the row containing the database to be backed up. Multiple resources can be manually backed up at the same time.</span></li>
     <li><span>Set the name of the copy generated during manual backup.</span><p></p><p>If this parameter is left empty, the system sets the name to <strong>backup_</strong><em>Timestamp</em> by default.</p> <p></p></li>
     <li><span>Select a protection policy, which can be <span><strong>Full backup</strong></span>, <span><strong>Incremental backup</strong></span>, <span><strong>Differential Backup</strong></span>, or <span><strong>Log Backup</strong></span>.</span><p></p>
      <div class="note">
       <img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span>
       <div class="notebody">
        <p><span><strong>Incremental backup</strong></span> and <span><strong>Differential Backup</strong></span> apply only to GaussDB T cluster backup scenarios.</p>
       </div>
      </div> <p></p></li>
     <li><span>Click <span class="uicontrol"><b><span><strong>OK</strong></span></b></span>.</span></li>
    </ol>
   </div>
  </div>
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   <div class="familylinks">
    <div class="parentlink">
     <strong>Parent topic:</strong> <a href="en-us_topic_0000001792548680.html">Step 7: Performing Backup</a>
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